The Chancellor has the power to cancel the rise in rail fares next year - he reduced the amount they would increase by this year - but that is not to say that he will.
A source at the Department for Transport said "we have to be realistic about pressure on the Treasury" to reduce the national deficit.
Under the current plan for an average price rise of 6.2%, a season ticket between Sheffield and London will cost £2,172 while a season ticket between London and Northampton will rise to £5,050.
The rise in inflation means more misery for commuters as train companies can increase fares up by 6.2%. Will the Chancellor step in?
Today's inflation figures will give an indication of the level of rail fare increase we can expect in January. So what is driving that rise?
Commuters are braced for more misery as inflation figures were higher than expected meaning that train companies can charge more.